ENTRY AND START SYSTEM (for Start Function), Diagnostic DTC:B2285

DTC Code DTC Name
B2285 Steering Lock Position Signal Circuit Malfunction

DESCRIPTION

This DTC is stored when serial communication signals and LIN communication signals in the circuit between the power management control ECU and steering lock actuator assembly (steering lock ECU) are inconsistent.

DTC No. DTC Detection Condition Trouble Area
B2285 Cable and LIN information between the power management control ECU and steering lock actuator assembly (steering lock ECU) are inconsistent.

  • Power management control ECU

  • Steering lock actuator assembly (steering lock ECU)

  • Wire harness or connector

WIRING DIAGRAM

A01ND5KE02

INSPECTION PROCEDURE

Note


  • When the power management control ECU is replaced with a new one and the cable from the negative (-) auxiliary battery terminal is connected, the power source mode becomes on (IG) mode. When the auxiliary battery is removed and reinstalled, the power source mode that was selected when the auxiliary battery was removed is restored.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Tech Tips

Check the connector connection to the terminal to make sure that there is no abnormality such as a loose connection, deformation, etc.

PROCEDURE


  1. CHECK LIN COMMUNICATION SYSTEM


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

    4. Clear the DTCs Click here.

    5. Check if DTC B2287 is output.

      OK
      DTC B2287 is not output.

    NG

    GO TO LIN COMMUNICATION SYSTEM Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU)


    1. A01NHLTE03
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Power Management Control ECU)
      *2

      Front view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the F97 and F98 connectors from the power management control ECU.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      F97-1 (AM22) - Body ground Always 9.5 to 16 V
      F98-7 (AM21) - Body ground Always 9.5 to 16 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU)

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)


    1. A01NHLTE04
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Power Management Control ECU)
      *2

      Front view of wire harness connector

      (to Power Management Control ECU)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F97-5 (E01) - Body ground Always Below 1 Ω
      F97-6 (E1) - Body ground Always Below 1 Ω
      F98-4 (E12) - Body ground Always Below 1 Ω
      F98-5 (E02) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 1 JUNCTION)

    OK

  4. INSPECT STEERING LOCK ACTUATOR ASSEMBLY


    1. A01NHODE23
      Text in Illustration
      *1

      Component with harness connected

      (Steering Lock Actuator Assembly (Steering Lock ECU))

      Reconnect the F97 and F98 connectors to the power management control ECU.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F37-4 (SLP1) - Body ground Steering locked 10 kΩ or higher
      F37-4 (SLP1) - Body ground Steering unlocked Below 1 Ω

    NG

    REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU)


    1. A01NCNWE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Power Management Control ECU)
      *2

      Front view of wire harness connector

      (to Steering Lock Actuator Assembly (Steering Lock ECU))

      Disconnect the F98 connector from the power management control ECU.

    2. Disconnect the F37 connector from the steering lock actuator assembly (steering lock ECU).

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F98-16 (SLP) - F37-4 (SLP1) Always Below 1 Ω
      F98-16 (SLP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU)

    OK

  6. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Power Source Control / Data List.

    5. Read the Data List according to the display on the intelligent tester.

      Power Source Control
      Tester Display Measurement Item/Range Normal Condition Specified Condition
      Steering Unlock Switch Steering lock condition/ON or OFF

      ON: Steering unlocked

      OFF Steering locked

      		 -
      Result
      Result Proceed to
      ON (steering lock is unlocked) and OFF (steering lock is locked) appear on the screen. A
      ON (steering lock is unlocked) and OFF (steering lock is locked) do not appear on the screen (for LHD). B
      ON (steering lock is unlocked) and OFF (steering lock is locked) do not appear on the screen (for RHD). C

    B

    REPLACE POWER MANAGEMENT CONTROL ECU (for LHD) Click here

    C

    REPLACE POWER MANAGEMENT CONTROL ECU (for RHD) Click here

    A

    REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) Click here